Browsing by Author "33f6453b-e9bd-4dee-a95e-9066e3cd03b8"

Now showing items 1-9 of 9

    • A third gyrovirus species in human faeces 
      Phan, Tung G.; Li, Linlin; O'Ryan Gallardo, Miguel; Cortes, Hector; Mamani, Nora; Bonkoungou, Isidore J.O.; Wang, Chunling; Leutenegger, Christian M.; Delwart, Eric (2012)
      Until 2011 the genus Gyrovirus in the family Circoviridae consisted of a single virus (Chicken anemia virus or CAV) causing a common immunosuppressive disease in chickens when a second gyrovirus (HGyV) was reported on the ...
    • Human Caliciviruses Are a Significant Pathogen of Acute Sporadic Diarrhea in Children of Santiago, Chile 
      O'Ryan Gallardo, Miguel; Mamani, Nora; Gaggero Brillouet, Aldo; Avendaño, Luis Fidel C.; Prieto, Susana; Peña, Alfredo; Jiang, Xi; Matson, David O. (2000)
      Human caliciviruses (HuCVs) are increasingly recognized as common pathogens that cause acute sporadic diarrhea in children; however, regional antigenic and genetic diversity complicate detection techniques. Stool samples ...
    • Latent tuberculosis infection screening in healthcare workers in four large hospitals in Santiago, Chile ... 
      Hernández, Mariluz; Casar, Carlos; García, Patricia; Morales, Verónica; Mamani, Nora; Gómez-Cofré, Natalia; Pizarro, Patricia; Balcells, M. Elvira (Sociedad Chilena de Infectologia, 2014)
      Background: It is currently unknown which is the prevalence of latent tuberculosis infection in healthcare workers in Chile, but this group has been described as at higher risk of developing active tuberculosis than general ...
    • Molecular epidemiology of human rotaviruses in Santiago, Chile 
      O'Ryan Gallardo, Miguel; Mamani, Nora; Avendaño, Luis Fidel; Cohen, Jacob; Peña, Alfredo; Sanfurgo Villarroel, Julia Pamela; Chavez, Ana; Valdivieso, Francisca; Matson, David O. (1997)
      Background. Protective immunity against rotavirus infection is directed against antigenic epitopes on the outer capsid proteins VP7 and VP4. Our aim was to characterize the epidemiology of rotavirus antigenic types over ...
    • Novel recombinant norovirus causing outbreaks of gastroenteritis in Santiago, Chile 
      Vidal Álvarez, Roberto; Roessler, Patricia; Solari, Verónica; Vollaire, Jimena; Jiang, Xi; Matson, David O.; Mamani, Nora; Prado Jiménez, Valeria; O'Ryan Gallardo, Miguel (AMER SOC MICROBIOLOGY, 2006-06)
      Capsid and polymerase (RdRp) genes of 13 norovirus outbreak strains from Chile were compared. The genes sequences were discordant for five strains, and recombination was confirmed for two of them by amplification of a ...
    • Predominance of Rotavirus G8P[8] in a City in Chile, a Country Without Rotavirus Vaccination 
      Lucero, Yalda; O'Ryan Gallardo, Miguel; Liparoti, Giulia; Huerta, Nicole; Mamani, Nora; Ramani, Sasirekha; Lagomarcino, Anne J.; Del Canto, Felipe; Quense, Jorge (Mosby Inc., 2018)
      © 2018 Elsevier Inc. Rotavirus G8P[8] infection has been common in Africa, but rare in the Americas. Among 23 rotavirus episodes observed during 18 months of surveillance of 100 families in Chile, 11 (48%) were identified ...
    • Prevalence of astrovirus infection among Chilean children with acute gastroenteritis 
      Gaggero Brillouet, Aldo; O'Ryan Gallardo, Miguel; Noel, Jacqueline S.; Glass, Roger I.; Monroe, Stephan S.; Mamani, Nora; Prado Jiménez, Valeria; Avendaño, Luis F. (1998)
      The frequency of astrovirus infection in 456 Chilean children with diarrhea was determined by enzyme-linked immunosorbent assay, reverse transcriptase PCR, and cell culture. Astrovirus was detected in 16.5% of rotavirus-negative ...
    • Rotavirus genotypes in children with gastroenteritis assisted in two public hospitals from Chile: Viral ... 
      Lucero, Yalda; Mamani, Nora; Orellana Cortés, Héctor Hernán; Peña, Alfredo; Vergara, Rodrigo C.; Gallardo, Miguel O.Ryan (2012)
      Background: Rotavirus is the main cause of severe gastroenteritis (GE) in children. Two vaccines currently available have proven effi cacy against the predominant genotypes. Rotavirus genotypes vary both geographically ...
    • Symptomatic and asymptomatic rotavirus and norovirus infections during infancy in a chilean birth cohort 
      O'Ryan Gallardo, Miguel; Lucero, Yalda; Prado Jiménez, Valeria; Santolaya de Pablo, María Elena; Rabello, Marcela; Solis, Yanahara; Berríos, Daniela; O'Ryan-Soriano, Miguel A.; Cortés, Hector; Mamani, Nora (Lippincott Williams and Wilkins, 2009)
      Background: Rotavirus and more recently norovirus have been recognized as 2 of the most common causes of acute diarrhea in children. Comparative analysis of these infections in a birth cohort has not been performed and can ...